Chapter 2 Self Quiz: The Chemistry of Life

  1. Which particle has a negative charge and orbits the nucleus of an atom?
    1. proton (wrong)
    2. neutron (wrong)
    3. electron (correct)
    4. cation (wrong)
    5. anion (wrong)
      Hint
  2. What is the atomic number of the cation formed in the reaction at right?
    1. 1 (wrong)
    2. 10 (wrong)
    3. 11 (correct)
    4. 16 (wrong)
    5. 17 (wrong)
      Hint
  3. Sodium chloride (NaCl) forms a regular lattice of alternating sodium and chloride ions held together by ________ bonds.
    1. ionic (correct)
    2. hydrogen (wrong)
    3. cohesive (wrong)
    4. adhesive (wrong)
    5. covalent (wrong)
      Hint
  4. A covalent bond is the sharing of ________ electron(s).
    1. one (wrong)
    2. two (correct)
    3. three (wrong)
    4. four (wrong)
    5. eight (wrong)
      Hint
  5. Water possesses the following properties EXCEPT:
    1. heat storage (wrong)
    2. ice formation (wrong)
    3. high heat of vaporization (wrong)
    4. high cohesion and surface tension (wrong)
    5. poor solvent for polar (hydrophilic) molecules (correct)
      Hint
  6. The concentration of hydrogen ions in a solution is a measure of its
    1. electronegativity (wrong)
    2. salinity (wrong)
    3. polarity (wrong)
    4. pH (correct)
    5. atomic number (wrong)
      Hint